The Nike Zoom Fly SP “Black/Light Bone” is an ultra lightweight performance running design built to withstand demanding sprints and long distance runs. The upper is comprised of a translucent, stretch-woven material that allows for a constant stream airflow while remaining sturdy and supportive. A digital clock motif on the heel references the attempt to break the two-hour marathon barrier and is an ode to the archival Nike Zoom Mayfly. Black-based Nike Racing branding covers the spine in white lettering with running-oriented designs appearing on the tongue. A white Lunarlon foam midsole creates a light, airy feeling while a full-length carbon-infused nylon plate aids in stiffening up the ride.